Paint compound or mixture.



UNITED STATES Patented August 16, 1904.

WILLIAM N. BLAKEMAN, JR, OF NEW YORK, N. Y.

PAINT COMPOUND OR MIXTURE.

SPECIFICATION forming part of Letters Patent No. 767,683, dated August 16, 1904.

Application filed-August 11,1903. Serial No. 169,096. (No specimens.)

T0 aZZ whom it may concern:

Be it known that I, WILLIAM N. BLAKEMAN, J r., of the borough of Manhattan, in the city, county, and State of Ne W York, have invented a new and useful Paint Compound or Mixture, which invention is fully set forth in the following specification.

The object of this invention is to utilize nondrying fatty oils (such as cotton-oil, sunfloweroil, corn-oil, castor-oil, and the like) in the manufacture of paints, these oils having heretofore been regarded as useless for this purpose by reason oftheir non-drying characteristic.

My invention consists in incorporating with a non-drying oil a small proportion of tungoil, (known also as Chinese or Japanese wood-oil) and then grinding a pigment in this vehicle.

Tung-oil seems to be avery remarkable oleaginous product, the composition of which is not now well understood, and although classed among the drying-oils the result of its induration is very different from the oxidized film of the well-known drying-oils, for when exposed to the atmosphere in a thin layer on plain surfaces it dries toa rough, opaque, and arborescent film.

I have discovered that when about fifteen per cent. of tung-oil is incorporated with one of the non-drying fatty oilscotton-oil, for example thecompound or mixture will form a drying-oil possessing good drying qualities and well adapted for use as a vehicle for pigments for paints.

In carrying out my process I simply take the desired proportions of each oil and thoroughly incorporate one with the other. Either the tung-oil or the non-drying fatty oil, or both, may be oxidized before being combined and a more energetic and complete blending 7 thereby effected.

The tung-oil may be combined with a mixture of two or more non-drying oils, and from five to ten per cent. of linseed or other drying oil (either raw or boiled) may be added as a drier, if desired, in which case the proportion of tung-oil may be slightly reduced. In order to form a paint compound, I then grind in the oil vehicle so produced any of the well-known pigments, such as white lead, lead sulfate, lead sulfite, zinc oxid, zinc oxychlorid, zinc sulfid, zinc oxysulfid, zinc sulfo-chlorid, or barium sulfate, or any combination of these. I prefer to use either lead sulfate, zinc oxid, zinc sulfid, zinc oxychlorid, or zinc sulfo-chlorid. The paint compound so produced will when spread dry in a satisfactory manner and with a smooth and elastic film. Even white lead and other lead salts (which heretofore it has been found impossible to use with the non-drying fatty oils) will form quick-drying compounds with non-drying oils treated as herein described.

The proportions of oils and pigments may be varied as practice shall dictate. The proportion of tungoil which I use is from about ten per cent. as a minimum to twenty-five per cent. as a maximum, depending upon the nature of the non-drying oil and character of the pigment used, fifteen per cent. giving satisfactory results in nearly every case. If zinc oxid be used as a pigment, suitable proportions would be eighty-five parts of cotton-oil, fifteen parts of tung-oil, and one hundred parts of zinc oxid.

In another application, Serial No. 169,095, filed herewith,I have claimed a drying-oil composed of tung-oil and a non-drying fatty oil; but in the present application I desire to claim said oil in combination with a pigment.

Having thus fully described my invention, I claim- 1. As a new composition of matter, a paint compound or mixture of,substantially, eightyfive parts of non-drying fatty oil, fifteen parts of tung-oil, and a pigment.

2. As a new composition of matter, a paint compound or mixture of, substantially, eightyfive parts of cotton-oil, fifteen parts of tungoil, and a pigment.

3. As a new composition of matter, a paint compound of tung-oil; an oxidized non-drying fatty oil; and a pigment.

4. As a new composition of matter, a paint compound of oxidized tung-oil, an oxidized non-drying fatty oil, and a pigment.

5. As a new composition of matter, a paint compound or mixture of, substantially, eightyfive parts of non-drying fatty oil; fifteen parts of tung-oil; a pigment; and a drier.

WM. N. BLAKEMAN, JR.

WVitnesses:

FRANoIs P. REILLY, CHAS. A. KANE. 

